I found it odd how Pictochat goes under a broad "DS" series logo that afaik has nothing it it besides Pictochat, while the 3DS/Wii U built-in apps get their own logos unrelated to their console. 3DS doesn't really have anything that could fit this great but the rectangle U symbol could've worked fine (like it is a letter, but a more stylized one than all the ones that went into F tier here)